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# If 19 in roman numerals is ixx or xviiii then what is half of 19 in roman numerals?

Updated: 10/27/2022

Wiki User

8y ago

Best Answer

While IXX is the Roman numeral expression for the Latin term nineteen, XIX is the more commonly used modern equivalent (see below), as in the year MMXIX , Louis XIX of France, or Super Bowl XIX.

Roman Latin was the language spoken by the Romans. The Romans did their calculating by a combination of numerals which we call the Roman numeral system. The Roman numerals for 19 are IXX or XVIIII which in Latin is called undeviginti or novemdecim respectively. A common misconception is that 19 in Roman numerals is XIX. The Roman numeral for 1/2 (one-half) looks like an S which in Latin is called semis. So half of IXX is SX (-1/2+10) because SX+SX = IXX. And half of XVIIII is VIIIIS (9+1/2) because VIIIIS+VIIIIS = XVIIII. Roman numeral values: M=1000, D=500, C=100, L=50, X=10, V=5, I=1, S=1/2.

Alternative conventionally accepted answer Roman numerals read from left to right, starting with the highest value numeral. So clearly writing 19 as XIX (10 + 9) or XVIIII (10 + 5 + 4) both follow this rule, while writing IXX (9 + 10) does not.

Wiki User

8y ago
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Q: If 19 in roman numerals is ixx or xviiii then what is half of 19 in roman numerals?
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